Inspect ductwork. Duct appears to be insulated with no holes or issues. All runs are flex duct and insulated. Recommended customer closes vents and door to crawl space in winter to help lower electric bills. Inspected insulation in attic above living room. There is at least 7 to 8 inches of fiberglass which is within recommended range. Indoor coil needs cleaned. Air handler isn’t getting enough air flow from 1 inch filter in living room. Recommend customer installs an airbear cabinet and fitting above unit to help improve air flow through system. This should greatly help the system run more efficiently. Also recommended customer removes at least 1/2 of flooring in front of air handler to help remove blower door when needed. 3/30/23 Cleaned evap coil and installed fitting above air handler. Checked systems in both heat and ac mode. System appears to be operating normally at this time. Recommend customer gets check up on AC later this season to clean outdoor coil.